How to count how many times a nested function is being called during fmincon

Hello,

I am working with a Non-linear MPC and I am using fmincon for the optimization. The NMPC runs in Simulink and currently I am trying to modify optimplotfval in order to extract the number of iterations, the optimum value and the current time step of simulation for each optimization result. One way I thought that I could include time is to count the numbers that my version of optimplotfval will be called during the simulation and then use this counter knowing the step of the solver to extract the time.

I would like to ask how would it be possible for me to implement this or even if there is a better way to approach to this?

Answer 1

[patr chri]

I found the answer by looking at this topic:

https://www.mathworks.com/help/matlab/math/output-functions.html